Ho ea ka boholo ba mohlala le ts'ebeliso ea indasteri le ea ka, sprocket e ka etsoa ka thepa: 35MnSi, 35Mn2, 40Mn joalo-joalo Ka mor'a ho phekola mocheso o tloaelehileng oa sekoti sa sprocket, boima ba matrix bo fihla ka holimo ho HB235, 'me leino la ho khanna le thatafatsoa ke ho thatafala ha maqhubu a mahareng le ho futhumatsa mocheso o tlase.Boima ba bokaholimo bo fihla ho HRC48-54, 'me botebo bo thata bo ka holimo ho 5-10mm (HRC45).E ka fetisa matla ka nepo tlas'a maemo a thata a ho sebetsa, 'me e na le ts'ebetso e ntle ea ho thibela ho roala, e ntlafatsang haholo bophelo ba sehlahisoa le ho fokotsa litšenyehelo tsa tšebeliso ea bareki.